WelcometotheKids’ScienceChallenge! Doyoulikescienc...
问题详情:
Welcome to the Kids’ Science Challenge!
Do you like science projects and winning some awesome gifts? This is the challenge for you. What’s even better is that you don’t have to build anything--simply come up with an original idea or design that relates to one of three topics given below.
Wonderful Sounds
Ready for Wonderful Sounds? Click on Science Secrets to meet our sound specialist. And be sure to download fun activities with crazy new sounds and musical instruments in the Dig In section! Now what kind of new musical instrument can you invent?
Super Material for Sports
Ready for Super Material for Sports? You’ll discover the amazing world of Materials Science, where scientists and engineers develop new materials for everyday functions--like sports! Click on Science Secrets for information about our scientist. And don’t forget to download the fun activities in the Dig In section! Now can you come up with a new sports material that would help you play your favorite sport?
Magical Microbes
Ready to discover Magical Microbes, the tiniest living things on earth? Click on Science Secrets for information about our scientists. And be sure to download all the fun activities in the Dig In section! Now can you think of a brand new way that microbes can help people?
ably the Dig In section can to kids about the three topics.
A. send a gift B. find a specialist
C. tell a truth D. give an inspiration
h topic will Tom probably choose if he shows interest in biology?
A. Magical Microbes B. Super Material for Sports
C. Wonderful Sounds D. Science Challenge
’s the purpose of the Kids’ Science Challenge?
A. To discourage kids’ curiosity B. To challenge kids’ ability
C. To get kids join in an activity D. To dig kids’ creativity
【回答】
DAD
知识点:阅读理解
题型:阅读理解
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下列关于名著的表述,不正确的一项是 ( )A.贾政望...
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直角坐标系中,点P(1,4)在A.第一象限 B.第二象限 C.第三象限 D.第四象限
问题详情:直角坐标系中,点P(1,4)在A.第一象限 B.第二象限 C.第三象限 D.第四象限【回答】A知识点:平面直角坐标系题型:选择题...
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在恒温、体积为2L的密闭容器中进行反应:2A(g)⇌3B(g)+C(g),若反应物在前20sA物质由3mol降...
问题详情:在恒温、体积为2L的密闭容器中进行反应:2A(g)⇌3B(g)+C(g),若反应物在前20sA物质由3mol降为1.8mol,则前20s的平均反应速度为()A.v(B)=0.03mol/(L•s)B.v(B)=0.045mol/(L•s)C.v(C)=0.03mol/(L•s)D.v(C)=0.06mol/(L•s)【回答】考点:化学反应速率和化学计量数的关系.专题:化学反应速率专...
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